Area Code 231
Area code 231 serves Michigan, including Michigan. It is listed as a geographic area code in United States.
Area Code 231 Summary
- Area code
- 231
- Region
- Michigan
- Country
- United States
- Major cities
- Michigan
- Timezone
- ET
- Current local time
- ET: 4:09amET: 4:09am
- Type
- geographic
- Overlays
- None listed